Abstract: An electrically driven orthopedic impactor may include an adapter for interfacing between the orthopedic impactor and a surgical implement. The adapter may have a first surface that transmits a forward impact energy and a second surface that transmits a reverse impact energy. The adapter can connect to the surgical implement and to the orthopedic impactor without the use of external tools. The adapter may connect to the orthopedic impactor via a pushing motion and may disconnect from the orthopedic impactor via a reciprocal sleeve. A sensor can communicate a spatial orientation of the adapter with respect to at least one reference point that is not located on the adapter or the orthopedic impactor. A communication device may transmit information to the orthopedic impactor related to frequency or impact energy settings based on a type of surgical implement attached to the adapter.

Abstract: The present invention relates to a device and system for fixation of intra-articular and extra-articular fractures and non-unions of small bones and other small bone fragments, and more particularly to a threaded nail with a robust length and a trailing end with a cutting tip and longitudinal cutting flutes and a stepped diameter with cutting flutes at the transition point, and an optional cannulation along the central longitudinal axis of the nail.

Abstract: An apparatus for extraction of osseous tissue is disclosed. The apparatus includes a fixed portion and a clamp oriented along a generally central area of the fixed portion. The apparatus includes a first bone cutting device and a second bone cutting device coupled to the fixed portion and oriented around the clamp. The first bone cutting device and the second bone cutting device are coupled to the fixed portion using respective joints that accommodate orientations of the first bone cutting device and the second bone cutting device relative to the fixed portion along different horizontal and vertical axes. The clamp is configured to engage a first bone portion during a surgical procedure. The first bone cutting device and the second bone cutting device are configured to remove a second bone portion.

Abstract: A surgical grip for receiving a handpiece shaft for conjoint rotation therewith and/or for receiving a medical tool in such a way as to transmit torque, includes a carrier sleeve on which at least one coupling component provided for coupling the handpiece shaft is attached such that the at least one coupling component can be brought to a coupled position and to an uncoupled position in the operating state, wherein the at least one coupling component can be brought into contact with an activation unit which is arranged between the carrier sleeve and to an outer actuation sleeve, wherein a rotation securing unit present inside the actuation sleeve acts on the activation unit in a spring-biased manner in the operating state such that the activation unit is held secure against rotation relative to the carrier sleeve.

Abstract: An elongate endovascular element for crossing through an obstruction in a blood vessel comprises: a proximal section; a distal tip section of smaller diameter than the proximal section; and a distally-tapering intermediate section extending between the proximal and distal tip sections; wherein the tapered intermediate section has a length that is substantially ?/2 or a multiple of ?/2, where ? is a wavelength of a driving frequency that will produce longitudinal resonance in the element.

Abstract: A system (30) for dispensing curable material. A lead screw (62) is rotatably fixed relative to a first control surface (60) and includes external threads (94). A locking nut (90) includes internal threads (92) threadably engaging the external threads. An engagement feature (98) of the locking nut is adapted to be selectively engaged with an actuator (120) having a second control surface (122). The threads provide for rotation of the locking nut about a translation axis when the actuator is in a disengaged position. Rotation of the locking nut permits the lead screw to move proximally along the axis and the compressed curable material to at least partially decompress within a dispensing volume. The threads further provide for distal advancement of the lead screw along the axis when the actuator is in an engaged position rotatably fixing the locking nut about the axis. Methods for operating and packaging the curable material dispensing system are also described.

Abstract: Medical devices for creating or expanding a cavity within bone of a patient are disclosed. In some circumstances, a medical device, such as an osteotome is designed to facilitate simultaneous advancement and articulation of a distal portion of the osteotome. Simultaneous advancement and articulation of the distal portion may reduce one or more forces on the distal portion of the osteotome relative to other methods in which advancement and articulation are separated in time, thereby decreasing the risk of breakage or other damage to the osteotome.

Abstract: Methods for accessing a disc space of a patient as a part of an interbody fusion, as well as the tools employed therewith. An exemplary method may include inserting a leading end of a tool into the patient's back at a location on the posterior surface that is laterally offset from a patient's spinous process and disc. The tool's initial entry into the patient may be from a posterior approach. As the tool is advanced along its designated path, it begins to deviate from the posterior approach towards a lateral approach. When the leading end reaches the disc, it may access the disc from a lateral or substantially lateral location. The tool may be used to access the disc location, to remove disc material, to deliver a cutting tool for removing the disc material, and other steps associated with the spinal interbody fusion procedure.

Abstract: A surgical retractor adapted to develop the interval between the gastrocnemius and soleus to facilitate one or both of gastrocnemius and soleus recession to treat equinus is disclosed. Particular forms of the present disclosure include a retractor having handles extending transversally to the retractor head such that the handles may be used to manipulate and actuate the instrument with its head positioned through an incision and into the interval between the gastrocnemius and soleus, with the handles extending either distally or proximally from the incision site so that such handles do not interfere with the surgical procedure. In other illustrative embodiments, the retractor head can include a gastrocnemius retractor and a soleus retractor, each of which include a plurality of guides operable to guide the incision of the fascial layer of the gastrocnemius and soleus, respectively, to effect intermuscular fascial lengthening to relieve equinus.

Abstract: The invention resides in the field of medical technology. It relates in particular to a sonotrode suitable for use with an ultrasonic surgical instrument. The invention refers further to an ultrasonic surgical instrument for cutting or punching bones, including such a sonotrode as well as a method for manufacturing the sonotrode of the invention.

Abstract: This invention is directed to devices and methods for surgical access to the body, and particularly to surgical drills for accessing a body cavity and methods therefor. In general, a surgical drill is utilized to gain access to a body cavity or part, such as where bone and/or other hard tissues need to be pierced. For example, the skull and other bones with internal cavities may require surgical access to treat body portions contained within the bone. Further in general, it may be generally desirable to create access holes or openings which may be as small as possible and at a particular direction and/or trajectory. In this manner the access hole or opening may be utilized to guide another device, such as a treatment device, to a particular target along the established trajectory of the access hole or opening.

Abstract: An ultrasonic vibration transmittable probe includes a probe body configured to transmit ultrasonic vibration generated by an ultrasonic transducer. A treatment section is provided on a distal end side of the probe body along its longitudinal axis and is configured to cut a treatment object with the ultrasonic vibration. The treatment section includes first to third cutting surfaces disposed at progressively proximal positions. A portion of the first cutting surface has a dimension along a first orthogonal direction orthogonal to the longitudinal axis that is smaller than a dimension of the second cutting surface along the first orthogonal direction.

Abstract: An ultrasonic surgical system includes an ultrasonic transducer, a probe, and at least one circuit. The ultrasonic transducer is designed to ultrasonically vibrate. The probe is coupled to the ultrasonic transducer and is designed to treat a living tissue by the ultrasonic vibration. The circuit performs functions including detecting a pressing force of the probe against the living tissue, calculating a value of a product of the pressing force, an amplitude of the ultrasonic vibration, and a resonance frequency of the probe, comparing the calculated value with a predetermined product value, and generating a predetermined signal based on a result of the comparison.

Abstract: A surgical bone cutting device, including a handle configured to facilitate operation and control of said device by an operator, and an elongated hollow member extending from the handle, the hollow member having a proximal end and a distal end; wherein the hollow member includes an opening at the distal end thereof and a rotatable cutting element extending through the opening, and wherein the hollow member includes a first bend at the proximal end thereof, such that the part of the hollow member distal to the proximal bend is offset a central axis of the hand.

Abstract: A tool useful for deploying a flip anchor connected to a cable includes a housing with a first end and a second end; and a guiding tube having a bore therethrough. The guiding tube has a proximal end releasably connected to the first end of said housing, and a distal end configured to hold said flip anchor. The housing includes a mechanism having a low resistance surface and a slider having a high friction surface facing the low resistance surface, where the slider is movable between a) a clamping position configured to clamp the cable between the low resistance surface and the high friction surface; and b) a release position configured to allow the cable to move freely on the low resistance surface. A safety button on said housing is movable between an elevated position where the safety button holds the slider in said first position, and a depressed position where the safety button releases the slider, allowing it to enter the second position.

Abstract: A surgical navigation system according to one embodiment may comprise: an electromagnetic wave generation unit; a first detection unit attached to a surgical site of an object to detect a position attached to the surgical site; a second detection unit installed in a patient-specific surgical guide instrument inserted into the surgical site to receive the electromagnetic wave and detect the position of the patient-specific surgical guide instrument; a third detection unit installed in the surgical instrument inserted into the surgical site to detect the position of the surgical instrument; an information processing unit for registering the position of the first detection unit and the position of the third detection unit and for tracking the position of the surgical instrument on the basis of the position of the first detection unit attached to the surgical site, by setting the position of the patient-specific surgical guide instrument as a reference position when the patient-specific surgical guide instrument

Abstract: A minimally invasive surgical procedure for replacing a hip joint is provided. A main incision is initiated at a point being a projection of a tip of a greater trochanter and extends proximally about a distance in the range of from 1 cm to 8 cm in line with the femoral axis. An inline capsulotomy is performed, while keeping muscles and posterior capsule intact, to expose the hip joint capsule for accessing the hip joint. The femoral canal is prepared for receipt of a femoral implant. The femoral head is resected and removed out of the acetabulum. A step of acetabular preparation is performed using a retractor comprising two tip rails, each tip rail having a plurality of tines. Related tools, devices, systems and methods are also provided.

Abstract: A spinal joint distraction system for treating a facet joint including articular surfaces having a contour is disclosed and may include a delivery device including a generally tubular structure adapted to engage a facet joint, an implant adapted to be delivered through the delivery device and into the facet joint, the implant comprising two members arranged in opposed position, and an implant distractor comprising a generally elongate member adapted to advance between the two members of the implant causing separation of the members and distraction of the facet joint, wherein the implant is adapted to conform to the shape of the implant distractor and/or the articular surfaces of the facet upon being delivered to the facet joint. Several embodiments of a system, several embodiments of an implant, and several methods are disclosed including a method for interbody fusion.

Abstract: An implantable fixation device for rejoining opposed portions of a separated bone. The device including two corresponding plates that are configured to be aligned and coupled to a bone, such as a sternum, pre-resection of the bone or prior to cutting/separating the bone. The placement of the corresponding plates provides a gap between the edges of the plates that face one another allowing for and guiding a cutting tool for separating the bone. After the bone has been cut and the desired surgical procedure performed, the plates also assist in realigning and fixation of the bone portions. At least one plate includes a ratchet mechanism that is configured to tighten a locking element and draw the two plates together and into alignment with one another.

Abstract: A method of preparing a shoulder to receive a glenoid component includes accessing a glenoid of a shoulder, positioning a distal portion and a proximal portion of a combination power extension/anti-rotation device on a guide wire positioned in the shoulder and reaming a hole in the shoulder using the combination power extension/anti-rotation device with the distal portion and the proximal portion positioned on the guide wire. The proximal portion is removed from the guide wire and pivoted with respect to the distal portion while the distal portion is still positioned on the guide wire. The picoted proximal portion is used to rotate an instrument to a first position and a bore is formed in the glenoid through the instrument with the instrument at the first position.

Abstract: A sensor system includes a first member extending along a rotational axis and having a surface disposed circumferentially about the axis. The sensor system further includes a conductive element fixed to the first member and disposed on the surface and about the rotational axis and a second member extending along the axis. A rotational position between the first member and the second member is adjustable. The sensor system further includes a target mounted to and rotatable with the second member and being movable relative to the second member between first and second positions. The target is spaced apart from the conductive element in both the first and second positions and is closer to the conductive element in the second position compared to the first position. The conductive element is configured to sense the target in the second position for any rotational position between the first member and the second member.

Abstract: Surgical punch tools and methods of using the same are disclosed herein. A surgical punch tool may include a stationary base component having a planar bottom side. The planar bottom side may include one or more posts extending therefrom. Each post may include an associated sharp pin. A movable actuation portion may be configured to move each sharp pin from a non-actuated position within the corresponding post to an actuated position extending through the base component and from the corresponding post.

Abstract: An ultrasonic surgical instrument for boring a hole in a femur, including: an ultrasonic vibrator capable of generating ultrasonic vibration; a probe including a proximal end portion connected with the ultrasonic vibrator and a distal end treatment portion capable of boring a bone hole in the femur, and transmitting the ultrasonic vibration; and a cylindrical member covering the proximal end portion of the probe and not covering an exposed portion including the distal end treatment portion. The distal end treatment portion includes a columnar portion having a cross-sectional area that is larger than that of a remainder of the exposed portion of the probe.

Abstract: A fire extinguisher discharge nozzle is provided and includes sidewalls and a biasing element. The sidewalls define an aperture through which a medium(s) is dischargeable and are adjustable between multiple first and multiple second positions associated with dilated and constricted conditions of the aperture, respectively. The biasing element is configured to bias the sidewalls toward assuming one of the multiple first or multiple second positions. The sidewalls are drivable toward assuming the other one of the multiple first or multiple second positions in opposition to bias applied by the biasing element in accordance with a characteristic of the medium(s).

Abstract: This disclosure relates to a graft preparation station and methods for repairing bone defects. The station described herein may be utilized for dimensioning a graft prior to positioning the shaped graft at a surgical site.

Abstract: An orthopedic drill bit that is configurable to form a first bone tunnel having a first bore when inserted through a bone and a second, larger bore as the drill is partially withdrawn from bone to produce a reverse counterbore for accepting an anchor. The drill bit has a shaft with a pivotal cutting tip that is movable from a narrow boring configuration into a wider boring configuration. The drill bit has a body enclosing the shaft that is biased into engagement with the cutting tip. Rotation of the body allow a user to move the cutting tip from the narrower bore configuration used to drill a pilot hole into a wider bore configuration used to drill a reverse counterbore for accepting the anchor.

Abstract: Disclosed is a tool bit for an ultrasonic osteotome, comprising a cutting portion (1) located at a front end of the tool bit for an ultrasonic osteotome, a connecting portion (2) located at a rear end of the tool bit for an ultrasonic osteotome and connected with the cutting portion (1). The cutting portion (1) has a grinding part (3) for grinding and a blade part (4) for cutting at a front end thereof, and the grinding part (3) and the blade (4) are integrally formed. The tool bit for an ultrasonic osteotome is of an integral structure formed by grinding part (3) and blade (4). During an operation, a medical worker can use the tool bit for an ultrasonic osteotome for multiple uses with no need to replace the tool bit frequently, thus reducing the operation time, greatly improving the efficiency of surgery, reducing the risk of surgery and the sufferings of a patient. At the same time, the integration of two different types of tool bits can also lower production costs and save manpower and material resources.

Abstract: A method of forming a bone void for receipt of a prosthesis, comprising the steps of: inserting a stem of a reaming guide assembly into an intramedullary canal of a bone, the reaming guide assembly having first and second reamer guides disposed adjacent to each other, the first and second reamer guides being connected to an end of the stem; reaming the bone through the aperture of the first reamer guide to form a first bone void; inserting the lobe trial into the first bone void; and reaming the bone through the aperture of the second reamer guide to form a second bone void.

Abstract: A system comprised of custom radiographically designed tibial and talar cutting guides, a tibial reaming guide and bit, and instrumentalities for use in total ankle replacement surgery and a computer-based system and method for making the custom radiographically designed tibial and talar cutting guides.

Abstract: A method of cutting a bone (2) comprises the steps of: preparing the bone (2) in order to be accessible to an osteotomic instrument; predefining an osteotomic geometry on the bone (2); and applying the osteotomic instrument to the bone (2) thereby cutting the bone (2) along the osteotomic geometry and generating a cut surface (21) to the bone (2). The method further comprises delivering a laser beam to the cut surface (21) of the bone (2) such that the cut surface (21) of the bone (2) is ablated. The method according to the invention allows to improve healing of a bone at its cut surface after being cut by the osteotomic instrument.

Abstract: A cage device for harvesting bone graft material for use in bone fusion surgery, e.g., a spinal fusion. The device has a chamber configured to contain a slurry of morselized bone and blood that effuses from adjacent bones when the device is placed in a space between the bones, and a bone cutter assembly is inserted into the chamber and operated. In one embodiment, the cutter assembly includes an elongated cannula having a bend at a distal end, and a wire arranged to slide inside the cannula so that a cutting tip of the wire can be set to project a desired distance from the distal end. When the cannula is driven to rotate about its long axis, the wire cutting tip strikes and cuts grooves in the facing surfaces of the bones to produce the mentioned slurry which remains inside the chamber to promote a solid and healthy fusion.

Abstract: A method for designing an implant includes designing a contour curvature of the implant so that an articulate surface of the implant is designed to correspond to a simulated healthy cartilage surface reconstructed from a 3D model based on one or more images taken with MRI or CT-scanning of a damaged cartilage surface of a joint; and providing a positioning mark on a surface of the implant. The positioning mark is provided such that the positioning mark is parted from the center of the implant to be visible for a surgeon and is adapted to be used for indicating a rotational position of the implant to the surgeon.

Abstract: A surgical alignment system includes a guide arm, a ratchet arm frame configured to be coupled slidably to the guide arm, a ratchet arm configured to be coupled to the ratchet arm frame, and a sagittal sizing guide body configured to be coupled to the ratchet arm. The sagittal sizing guide body includes a first radiopaque object disposed at a first position and a second radiopaque object disposed at a second position that is spaced apart from the first position.

Abstract: An orthopaedic surgical instrument includes a customized patient-specific 5-in-1 cutting block having a plurality of ribs and cutting guide slots extending between each rib. A bone-facing surface of each rib has a customized patient-specific negative contour configured to receive a portion of a corresponding positive contour of the patient's femur.

Abstract: An apparatus for extraction of osseous tissue is disclosed. The apparatus includes a fixed portion and a clamp oriented along a generally central area of the fixed portion. The apparatus includes a first bone cutting device and a second bone cutting device coupled to the fixed portion and oriented around the clamp. The first bone cutting device and the second bone cutting device are coupled to the fixed portion using respective joints that accommodate orientations of the first bone cutting device and the second bone cutting device relative to the fixed portion along different horizontal and vertical axes. The clamp is configured to engage a first bone portion during a surgical procedure. The first bone cutting device and the second bone cutting device are configured to remove a second bone portion.

Abstract: A handheld rotary medical device with a shaver configured to remove cartilage is disclosed. The handheld rotary medical device may include an inner drive shaft, an elongated, tubular, outer housing encapsulating the inner drive shaft such that the inner drive shaft is positioned within the outer housing and a shaver at a distal end of the inner drive shaft. The shaver may include a plurality of teeth extending radially outward from an outer surface of the inner drive shaft. The medical device may include slots or grooves in the outer housing useful for cleaning the tissue from the teeth of the shaver.

Abstract: An endodontic file, for manual or motor driven use by an endodontist, includes a color-coded handle, a shank, and a serrated cutting edge. The cutting edge of the endodontic file is side-cutting with pyramidal teeth and ends in a pointed tip. The endodontic file is used manually inside the root canal in an “up and down” axially aligned motion and these pyramidal teeth will provide a ripping action. A second type of endodontic file has a curved cross section and a sharpened tip. with pyramidal teeth lining the edges of curved blade section. A third type of endodontic file has a flat debriding side which tapers to a point; with a series of adjacent 3-D pyramids emerging from this surface for removing loose material or in urging already loosened material from a root canal.

Abstract: Various implementations include a guide for intramedullary reamer; that includes a central body adapted to be received in a medullary canal and defining an inlet opening and an outlet opening, communicating with each other by an axial cavity, passing inside the central body, adapted to receive a reamer inside it. The central body defines at least one non-rectilinear portion, interposed between the inlet opening and the outlet opening, shaped so as to guide the reamer inside the medullary canal, in axial alignment. The non-rectilinear portion defines a window adapted to facilitate the insertion of the reamer inside said central body.

Abstract: A device for use in orthopaedic surgery. The device includes a metallic central member. The device also includes an outer portion comprising a polymer. The outer portion surrounds the metallic central member. The outer portion has a profiled outer surface for removing bone. A surgical instrument kit including a plurality of differently sized devices of the kind described herein. The device can be a broach or rasp. A method of removing bone during orthopaedic surgery.

Abstract: A guide for a bone cut comprises a guide base having an inner wall defining an opening. The inner wall has a plurality of detents distributed around the opening. The guide base has a proximal surface adapted to contact a skin of a person. An inner collar has one or more spring loaded devices extending outward from the inner collar in opposite directions. The inner collar is mountable with the spring loaded devices fitting within one or more of the plurality of detents. The inner collar has an inner wall defining a bore for receiving a cutting tool. The inner collar is configured to pivot the cutting tool about an axis, for cutting a bone. The axis lies along or parallel to a line along which the spring loaded devices lie.

Abstract: An orthopaedic surgical instrument includes a customized patient-specific surgical instrument having a body. A cutting guide slot extends through the body. A pair of first arms extends posteriorly from the body. Each arm includes a first customized patient-specific negative contour configured to receive a portion of a first corresponding positive contour of one of a patient's femoral condyles. A second arm extends proximally from the body. The second arm has a second customized patient-specific negative contour configured to receive a portion of a second corresponding positive contour of an anterior surface of the patient's femur. A method of performing a surgical procedure is also disclosed.

Abstract: An exemplary trial component is configured to be attached to a resected bone having a resection surface, and includes a body portion and a sliding fastening mechanism movably coupled to the body portion. The body portion has an articular surface, a bone-facing surface, and at least one drill guide extending through the articular surface and the bone-facing surface. The sliding fastening mechanism includes at least one post extending beyond the bone-facing surface, and the post is operable to engage the resection surface to retain the position of the sliding fastening mechanism relative to the bone. When attached to the bone, the trial component is structured to selectively retain the position of the body portion relative to the bone, and to selectively permit adjustment of the position of the body portion relative to the bone.

Abstract: The improvement is a spinal instrument (preferably, a bone screw driver) having a flexible shaft comprising a plurality of interlocking segments carried on a malleable core rod. The flexible shaft allows a screwdriver handle to be perfectly in-line with the cage inserter if desired, while still taking advantage of the tactile feel and torque transmission of the flex segment in its bent position. Accordingly, a surgeon can limit the amount of retraction and keep the driver handle close to the inserter without having to overcome the forces of the flexible segments' natural straight configuration.

Abstract: A tubular shaft for a tubular shaft instrument includes a hollow shaft component, an actuating rod arranged in the hollow shaft component, and functional elements that are attached at the distal ends of the shaft component and/or of the actuating rod. The actuating rod is axially displaceable relative to the hollow shaft component to move the distal sections of the functional elements toward one another, past one another, and/or away from one another. The actuating rod includes at least one bending area in which flexible segments and support segments alternate and in which the actuating rod has significantly less bending resistance than outside the at least one bending area. A friction-reducing layer on the at least one bending area of the actuating rod reduces the friction of the actuating rod on the inside wall of the shaft component.

Abstract: Surgical tool systems and methods of use thereof for performing endoscopic surgical procedures, which systems include a handpiece and a surgical accessory which detachably connects to the handpiece. The surgical accessory has a distal end which defines a cutting head incorporating two different types of tissue-treating areas.

Abstract: A platform device for material excision or removal from vascular structures for either handheld or stereotactic table use may comprise a work element or elements configured to selectively open and close at least one articulable beak or scoopula configured to penetrate and remove intra-vascular materials or obstructions, or follow a central lumen of another device or over a wire in a longitudinal direction. Flush and vacuum tissue transport mechanisms may be incorporated. A single tube or an inner sheath and an outer sheath which may be co-axially disposed relative to a work element may be configured to actuate a beak or beaks or scoopulae and provisions for simultaneous beak or scoopula closing under rotation may be incorporated.

Abstract: Drill guides and related methods are disclosed herein, e.g., for use in surgical procedures. In some embodiments, a drill guide can include an adjustment mechanism that permits one-handed adjustment of the guide depth and does not require that the drill guide be removed from the patient or that the drill be removed from the drill guide when making an adjustment. The adjustment mechanism can include a trigger that moves first and second detents into and out of engagement with a guide stem to allow step-wise adjustment of the guide depth.

Abstract: An endoscopic surgical blade is disclosed. The blade is part of an endoscopic knife assembly which also has a knife tube and alignment ring. The endoscopic knife assembly is for use in endoscopic surgery by insertion of the assembly though a slotted cannula. The knife tube is hollow and allows the insertion of an endoscope for viewing of the surgical procedure. The blade has an upper and a lower cutting surface on the forward edge, which meet at an angle at a crotch.

Abstract: An acetabular cup extractor (10) is provided that is designed for extracting medical device implants. The acetabular cup extractor includes a fastener (12) for securing to an implant (14) and a cutting assembly (16). The cutting assembly further includes a blade (18) spaced and movably connected to the fastener and a handle (20) operatively connected to the blade.

Abstract: The present disclosure in one aspect provides an adjustable depth drill guide comprising a trigger assembly further comprising a trigger and a primary actuating element and a telescopic rotational assembly which abuts the primary actuating element and further comprises an intermediate actuating element. The drill guide described herein allows a surgeon to adjust the depth of the drill guide using only one hand while in-situ.