Ovid: Chapman’s Orthopaedic Surgery

Editors: Chapman, Michael W.
Title: Chapman’s Orthopaedic Surgery, 3rd Edition

Joseph C. Milne
Richard A. Marder
J. C. Milne: The Bone and Joint Clinic, Fort Worth, Texas, 76104.
R. A. Marder: Department of Orthopaedics, University of California, Davis, Medical Center, Sacramento, California, 95817.
The major tenet in current meniscal surgery is meniscal
preservation. This has been driven by an enhanced appreciation of the
contributions of the menisci to reducing articular contact stresses and
to stabilizing the joint in concert with the principal ligaments (1,8,22,32,35,46,52).
Of importance has been refinement of the criteria used to select
appropriate treatment (repair, partial resection, or nonintervention)
for the torn meniscus. Technical advances, including instrumentation
for repair and resection, have facilitated both repair and resection. A
promising potential development is the use of biological scaffolds and
growth factors to enhance repair and stimulate meniscal regeneration (6,11,14,27).
Based on vascular supply, the meniscus can be divided into vascular and avascular zones (5,15).
Only the peripheral meniscal rim (the red zone) is richly vascularized,
representing approximately 25% of the entire meniscus. The central
meniscus (the white zone) is completely avascular and without healing
potential. A middle area (the gray zone) is in the transitional area
between the periphery and the central meniscus and has limited
potential for healing. Enhancement of healing beyond the red zone
(peripheral 3–4 mm of the meniscus) has been attempted with a variety
of techniques, including fibrin clot interposition, trephination of the
peripheral rim to encourage vascular ingrowth into avascular regions,
and various suture configurations; it has also been attempted
experimentally by using biological scaffolds, cytokines, and other
growth factors (6,11,12,14,26,29,38,42).
The meniscus is 75% water and 25% dry elements. Type I
collagen accounts for most of the dry composition, providing tensile
strength (21). Other components include
hydrophilic proteoglycans and elastin. Proteoglycans regulate water
content and, therefore, stiffness of the meniscus. Elastin aids in
recovery from meniscal deformation associated with cyclic loading.
Most collagen fibers within the body of the meniscus are arranged circumferentially and are parallel to the tibia (13). Radial tie fibers extend from the periphery, perpendicular


to the circumferential bands. This fiber orientation accounts for the
increased pullout strength of vertical mattress sutures compared to
horizontal mattress sutures (42). The surface layer of the meniscus is composed of randomly oriented fibers, which resist splitting and tearing.

Of the compressive load in the knee joint, 85% is transmitted through the medial meniscus and 75% through the lateral meniscus (46).
Meniscectomy has been shown to significantly decrease contact area and
increase peak pressures. Under loading conditions, total meniscectomy
can cause a fourfold increase in articular surface stresses, partial
meniscectomy increases forces twofold, and repair can restore normal
contact stresses (8,46).
When compressive force is applied to the knee joint, the anterior and
posterior attachments of the meniscus resist extrusion (49).
This converts compressive force into hoop stress, which the
circumferential orientation of the collagen fibers is ideally suited to
withstand. The radial tie fibers and superficial layer resist shear
stresses that attempt to separate the circumferential bundles, which
would result in a vertical longitudinal tear.
Levy et al. examined the role of the meniscus in
limiting anteroposterior (AP) translation of the tibia relative to the
femur. Although isolated sectioning of the meniscus had no effect on
stability, sectioning it in a knee with a deficient anterior cruciate
ligament (ACL) caused a significant increase in AP translation (32).
The contributions of the medial meniscus to stabilizing the knee exceed
those of the lateral meniscus. Other studies have shown a small but
statistically significant increase in varus–valgus laxity after
meniscectomy (35). These reports confirm the function of the meniscus as a secondary stabilizer.
Meniscal tears usually result from a single, acute
rotational force applied to the weight-bearing knee that overloads the
meniscus. Degenerative tears occur from repetitive submaximal forces
applied to a meniscus having already undergone attritional wear from an
irregular femoral articular surface; the majority involve the medial
meniscus (39). Concomitant meniscal injury
often accompanies tears of the ACL as well as multiple knee ligament
injuries including dislocation of the knee. Whereas lateral meniscus
injuries are most frequent in acute ACL tears, the medial meniscus is
most often torn in chronic ACL insufficiency. In combined ACL and
medial collateral ligament (MCL) injuries, meniscus tears occur less
frequently with complete MCL tears (grade III) than with partial tears
(grade II) and, in both instances, predominantly affect the lateral
meniscus (48).
Tear patterns are typically described by configuration,
acuity, and location. The most common tears are vertical longitudinal
(bucket-handle), oblique (flap), radial, horizontal cleavage, and
complex (Fig. 85.1). Most tears involve the posterior aspect of the meniscus. Tears are usually


complete, traversing the entire surface of the meniscus, but they may
be incomplete, affecting only the inferior or superior surface of the
meniscus (Fig. 85.2; see also COLOR FIG. 85.2).

Figure 85.1. Types of meniscal tears, shown with the typical lines of resection.
Figure 85.2. (See COLOR FIG. 85.2) Incomplete tear of the superior surface of the lateral meniscus associated with an anterior cruciate ligament tear.
The torn meniscus typically causes pain during axial
loading and rotation of the knee and may be accompanied by mechanical
symptoms of catching, popping, giving-way, swelling, and locking. The
patient may describe relief of symptoms with manual reduction of the
displaced meniscal fragment. In the arthritic knee, it is useful to
distinguish between patients with pain only and those with pain
associated with one or more mechanical symptoms. In the absence of
mechanical symptoms, it is unlikely that resection of a degenerative
tear will give significant pain reduction.
Perform a complete knee examination, including
assessment of limb alignment, gait pattern, and hip function,
especially in the older patient who might have hip pain referred to the
medial knee. Fowler and Lubliner delineated predictive criteria for
meniscus tears (25). The most specific findings
of a meniscus tear are a positive McMurray’s test and block to
extension. Unfortunately, the McMurray’s test is the least sensitive
test. Although joint line tenderness is very sensitive for a meniscus
tear, it is the least specific test, especially in the presence of an
acute ACL injury. Some patients will exhibit an effusion, and many will
demonstrate pain with forced knee flexion as well as forced extension
(spring or bounce test).
Radiographs are mandatory; perform magnetic resonance
imaging (MRI) on a case-by-case basis. For patients over the age of 40,
perform AP weight-bearing radiographs in addition to a lateral view of
the knee to exclude degenerative joint disease (DJD), loose bodies,
osteonecrosis, and tumor. Take additional views such as a Merchant view
to evaluate the patellofemoral joint, a notch view to look for loose
bodies, and a weight-bearing PA in 45° of flexion to diagnose early DJD
on an individual basis.
In the preoperative confirmation of a meniscal tear, MRI
is a tremendous asset, with an overall accuracy approximating 90%. If
cost were not a consideration, MRI would be routine in every patient as
an adjunct to, but not as a substitute for, a thorough physical and
adequate radiographic examination. In this day of managed care, many
patients are referred who have classic symptoms, a confirmatory
physical examination, and an MRI of the knee, but no radiographs. In
our practices, we do not routinely order MRI for patients with a locked
knee, a positive McMurray’s, or symptoms and findings suggestive of a
meniscus tear who have not responded to nonoperative treatment. In our
experience, these patients have sufficient indication for proceeding
directly to arthroscopy.
However, MRI can be misleading. Approximately 20% of
patients with a type II signal (incomplete tear) have been found to
have complete tears at arthroscopy (23). In
addition, MRI is infrequently helpful in the previously operated
meniscus to assess either healing after repair or reinjury in the
patient with previous partial meniscectomy.
Approximately 40% of patients with pain and swelling
consistent with a meniscus tear, but with no history of locking, a
block to extension, or ACL injury, can be treated nonoperatively with
resolution of symptoms (33). Usual measures
include nonsteroidal anti-inflammatories, a neoprene sleeve,
muscle-strengthening exercises for the lower extremity, and sometimes a
formal course of physical therapy. For patients with continuing
symptoms, arthroscopic intervention is indicated.
While inherently unsettling to most surgeons,
partial-thickness tears, incomplete radial tears, and stable vertical
longitudinal tears less than 10 mm in length do not need resection.
Shelbourne has shown that in patients undergoing ACL reconstruction,
these tears remain asymptomatic and do not progress (24).
Most meniscal tears are treated by arthroscopic partial
meniscectomy. The goal of partial meniscectomy is to remove only the
unstable or pathologic portion, leaving as much healthy meniscal tissue
as possible while avoiding an abrupt transition to the remaining
meniscus. Partial meniscectomy is indicated for radial tears not
extending to the periphery, oblique tears, horizontal cleavage tears,
degenerative tears, and irreparable vertical longitudinal tears that
are more than 5 mm from the absolute periphery.
  • See Chapter 84 for the general principles of arthroscopy.
  • Portal placement is of primary importance
    in performing partial meniscectomy. With the arthroscope in the
    inferolateral portal, use a spinal needle to identify proper placement
    of the inferomedial portal and any accessory portals. The inferomedial
    portal for medial meniscectomy typically is just inferior to the level
    of the inferolateral portal and is made with the knee positioned


    near extension with valgus and external rotation applied to visualize
    the posterior third of the meniscus, or in more flexion to visualize
    the anterior horn. If the spinal needle cannot be advanced to palpate
    the torn meniscus, the portal is not satisfactory. Choose either a more
    medial location immediately anterior to the MCL or an inframeniscal
    approach. If the posterior horn cannot be exposed without injury to the
    femoral condyle, use a posteromedial portal: With the arthroscope in
    the posteromedial compartment, pass through the intercondylar notch.

  • If a lateral tear is encountered, make
    the inferomedial portal with the leg in the figure-four position. This
    needs to be at a higher level than the inferolateral portal to allow
    instruments to pass freely above the tibial spines. For posterior tears
    of the lateral meniscus, instrumentation is usually necessary through
    the inferolateral portal because of the tighter radius of curvature of
    the lateral meniscus, which limits access from the inferomedial portal.
  • Once appropriate portals are established, resect using a combination of hand instruments and a motorized shaver (Fig. 85.3).
    Simple flaps and longitudinal tears can often be excised intact, using
    an arthroscopic knife or scissors to detach the segment. Debride most
    tears in a piecemeal fashion. A small up-biting punch, straight punch,
    right and left 90° punches, and a 4.5 mm full-radius resector will
    suffice for resection of most tears.
    Figure 85.3. A,B: Knife resection of flap tear. C,D: Motorized resection of flap tear.
  • After resecting the meniscal tear, pass
    the arthroscope via the notch into the posterior compartments to ensure
    that all loose meniscal fragments have been removed.
  • Use a three-portal technique to treat vertical longitudinal (bucket-handle) tears displaced into the notch (Fig. 85.4A; see also COLOR FIG. 85.4).
    For a medial meniscus tear, insert the arthroscope in the inferolateral
    portal as usual. Establish two inferomedial portals, using a spinal
    needle for localization. Place one portal either adjacent to the
    patellar tendon or through the patellar tendon. Make a second portal 2
    cm medial to the first, taking care to enter just over the rim of the
    meniscus so that instruments can reach the posterior horn. Insert


    angled arthroscopic scissors or a curved knife through the second
    portal, sectioning the anterior horn attachment in a tapered fashion (Fig. 85.4B).
    Switch the arthroscope to the inferomedial portal, and grasp the
    meniscus via the inferolateral portal. Now release the posterior extent
    of the tear with a small up-biter or meniscal knife through the
    anteriormost inferomedial portal or the transtendon portal (Fig. 85.4C).
    Smooth the margins using a 4.5 mm motorized shaver. Switch the
    arthroscope to the medial side and, with the shaver lateral, trim any
    remaining anterior irregularity, if needed.

    Figure 85.4. (See COLOR FIG. 85.4) A: Displaced bucket-handle tear of the medial meniscus. B: Anterior horn of bucket-handle tear detached. C:
    Grasping the resected anterior horn through an inferolateral portal and
    arthroscopic meniscotome inserted through a transtendon portal to
    resect the posterior attachment (viewed from inferomedial).
  • Deal with nondisplaced bucket handle
    tears the same way, or via a two-portal technique. If you use the
    latter, cut the posterior horn attachment via an ipsilateral portal,
    using a small up-biter, and leave a narrow bridge attached. Then divide
    the anterior horn attachment from whichever portal affords the best
    access. Remove the meniscus by avulsing the small remaining attachment
    of the posterior horn. Taper the margins to a smooth contour with
    punches and a motorized shaver.
Postoperative Management
Use cryotherapy, compression, and limited weight bearing
for 24–72 hours postoperatively to minimize swelling and attendant
pain. Implement early isometric quadriceps exercises and range of
motion without load when discomfort permits. Within a few days to 1
week after surgery, begin progression to unaided walking, cycling, and
short-arc quadriceps exercises. Once the incisions are healed, swimming
can be started. Normal activities can usually be resumed within 2–3
weeks but may take as long as 6 weeks. If the tear was complex or
degenerative, defer running, squatting, and other stressful activities
for a minimum of 3–4 weeks. Physical therapy can be beneficial to
achieve an earlier return to activity, but it is not mandatory.
Despite the first meniscal repair in 1885 by Annandale (4),
complete or partial meniscectomy remained the treatment of choice of
the vast majority of orthopaedists until the early 1980s. Interest in
repair has been stimulated by DeHaven’s work on open meniscal repair (16,17 and 18) and Henning’s inside-out arthroscopic repair (28,29). Since that time, numerous basic and clinical science reports have validated the concept of meniscal repair (2,20,30,36,37,41,43,44).
Accepted techniques include open repair, inside-out arthroscopic
repair, outside-in arthroscopic repair, and all-inside repair.
Despite the many available options, the reported success
rates of meniscal repair are similar, based on an average of published
reports (2,9,18,20,30,34,36,37,41,43,47,51), with an overall healing rate of nearly 85% (Table 85.1). Interstudy comparisons are difficult due to varied


techniques, as well as differences in types of tears, patient data,
associated injuries, and postoperative assessment criteria. For
instance, clinical success rates based on symptoms and function exceed
anatomic healing rates (34,45).

Table 85.1. Results of Meniscal Repair
Indications for Repair
Suitability for repair requires assessment of location,
pattern, and age of the tear; quality of meniscal tissue; patient age;
associated injuries; as well as surgical skill.
We repair all tears in the red zone (0–3 mm from the
periphery) and most in the gray zone (3–5 mm from the periphery). We
repair only nonmacerated, nondeformed fragments in the gray zone. While
recent work by Rubman et al. (44) has shown acceptable results from repair of tears in the white zone, this is not yet widely practiced.
Tear pattern.
Repair is indicated for vertical longitudinal tears longer than 1 cm and for radial tears that extend into the red zone.
Tissue quality.
We do not repair macerated and degenerative menisci.
Similarly, we treat with partial meniscectomy those chronic tears that
involve a meniscal deformity that precludes a functional repair.
We routinely perform meniscal repair in patients up to
the age of 45 years. Over this age, we do repairs in some patients on a
case-by-case basis, depending primarily on functional activity level,
physiologic age, and willingness to follow a more lengthy and rigorous
postoperative management protocol as contrasted to partial
meniscectomy. Some older patients may elect partial meniscectomy to
allow an earlier return to activity.
Once the reparable meniscus is identified, a surgical
technique must be selected. Technical aspects of the two most popular
arthroscopic methods are presented.
Inside-out Technique
This remains the most popular method. It allows accurate
placement of sutures while protecting neurovascular structures by
incorporating an accessory incision.
  • Use either a rasp or small shaver to
    debride the tear margins to achieve smooth meniscal surfaces and
    excoriate the adjacent synovial tissue to produce slight bleeding.
  • Make an accessory posteromedial or
    posterolateral incision to expose the capsule. For a medial tear,
    transilluminate the posteromedial knee through the notch to identify
    the saphenous vein, which travels with the nerve. Make a 3 cm
    longitudinal incision posterior to the MCL, centered just below the
    joint line (to accommodate the needles that will pass from superior to
    inferior). Retract the pes tendons posteriorly, along with the
    saphenous vein and nerve. Dissect the interval between


    joint capsule and the medial head of the gastrocnemius, and insert a
    small vaginal speculum or commercially available specialized retractor
    into this interval to expose the posterior capsule while protecting the
    posterior neurovascular structures. The retractor will deflect needles
    exiting the joint, allowing easy retrieval.

  • On the lateral side, make the incision along the posterior aspect of the lateral collateral ligament (Fig. 85.5)
    with the knee flexed approximately 90°. Develop the interval between
    the biceps femoris posteriorly and the iliotibial band anteriorly.
    Separate the lateral head of the gastrocnemius from the joint capsule.
    Insert the retractor in front of the lateral gastrocnemius to protect
    the adjacent peroneal nerve.
    Figure 85.5.
    Exposure of posterolateral capsule. Note that retractor must be placed
    in front of the lateral head of the gastrocnemius to protect the
    peroneal nerve.
  • As with an all-inside repair (technique
    below), portal placement must allow the cannula to be placed
    perpendicular to the tear and horizontal to the joint line. This
    usually requires placement of sutures into the meniscus from the
    contralateral portal while viewing from the ipsilateral portal.
    Placement of the cannula in the contralateral portal also tends to
    angle the penetrating needle away from the popliteal region (Fig. 85.6). Because of the curvature of the meniscus, it is helpful to utilize cannulas of various angles (Fig. 85.7). A single cannula is preferable because it allows greater flexibility in placing the second arm of the stitch.
    Figure 85.6. A curved cannula inserted through the contralateral portal is used for suturing to avoid popliteal vessels and nerves.
    Figure 85.7. Zone-specific cannulas for meniscus repair.
  • For medial tears, position the knee near
    extension to facilitate passage of the needles into the posterior
    meniscus and to preserve the posterior capsular fold. For lateral
    tears, position the knee in flexion to avoid injury to the peroneal
    nerve, and insert a retractor in front of the lateral head of the
  • Starting posteriorly, insert the
    appropriate curved cannula and advance a 10-inch needle with attached
    suture [2-0 nonabsorbable provides sufficient tensile strength (10)]
    to engage the torn fragment and reduce it to the margin. With the
    posterior retractor in place, push the needle through the meniscus
    margin posteriorly. Visualize the needle’s exit before continuing to
    push it out of the posterior incision or using a needle driver to grasp
    and deliver it. Place the second needle vertically (42)


    with a 3 mm bridge between arms (Fig. 85.8).
    Place as many sutures as necessary, maintaining a 5 mm interval between
    sutures. Then tie the sutures directly over the exposed capsule. If
    concomitant ACL surgery is being performed, delay tying the sutures
    until after the surgery is completed. Release the tourniquet to allow
    blood to fill the meniscal repair site and then tie the sutures.

    Figure 85.8. Vertical mattress sutures placed through a cannula.
  • For tears with an extreme anterior
    component, an outside-in suturing technique utilizing commercially
    available, modified spinal needles and suture passers can facilitate
    repair by allowing more precise needle placement.
All-inside Technique
This method does not require additional incisions; it
decreases operative time and complications; and its healing rates are
similar to those of inside-out repair (2,19).
We use a meniscal arrow system (Bionx Implants, Blue Bell, PA). The
arrow is made of a biodegradable polylactic acid that resorbs over a
3-year period. The implant has a barbed shaft with a 4 mm T-head, and
it comes in 10 mm, 13 mm, and 16 mm lengths (Fig. 85.9).
The barbs are perpendicular to the T-head to obtain maximum purchase in
the circumferential fibers of the meniscal body. Pull-out strength of
the arrow has been shown to be equivalent to horizontal mattress
sutures (2,12). The
instrumentation set contains five different cannulas with varying
curvatures, allowing access to all regions of the meniscus (Fig. 85.10).
Figure 85.9. Bionx meniscal arrows. Note that barbs are perpendicular to the T-head.
Figure 85.10. Bionx instrumentation set, including curved cannulas.
  • Prepare the tear margins as described
    above. Occasionally, it may be necessary to rasp the posterior horn of
    the medial meniscus from a posteromedial portal to avoid injuring the
    medial femoral condyle. Use a probe to estimate the necessary arrow
    length. Whenever possible, use 13 or 16 mm long arrows, because of
    their higher pullout strength (12).
  • Insert the appropriately curved cannula
    parallel to the joint line and perpendicular to the tear to obtain
    optimum fixation. Posterior tears are best addressed with the cannula
    in the ipsilateral portal, while tears in the midportion require that
    the cannula be inserted through the contralateral portal.
  • Use the cannula to hold the meniscus in a
    reduced position so that the arrow can enter the meniscus 3–4 mm from
    the tear. Insert the “spear” into the cannula, pushing it through the
    meniscus until its handle is seated, preparing a channel for the arrow (Fig. 85.11).
    Figure 85.11. Cannula holds the reduction, while a “spear” is used to create a channel for the arrow.
  • Remove the spear and insert the
    appropriate-length arrow into the cannula. Now push the arrow down the
    cannula and across the tear. Be certain to push the inserter all the
    way down against the back of the cannula to ensure that the head of the
    arrow is countersunk into the meniscus. If removal of an arrow is


    it 90° with a grasper (T-head perpendicular to tibia) prior to removal.
    This will reduce meniscal trauma by disengaging the barbs from the
    circumferential fiber bundles.

  • For posterior tears, place the most
    posterior arrow first, followed by an arrow in the center of the tear.
    If the tear is in the midportion of the meniscus, place the first arrow
    centrally with subsequent arrows in the anterior and posterior extents
    of the tear. Place arrows every 5 mm (Fig. 85.12).
    Figure 85.12. Arrows stabilizing a vertical tear.
Postoperative Management
Historically, most surgeons have prescribed limited
motion and no weight bearing for several weeks after surgery, with a
delay of 6 months or more to resume sports (16,29).
Over the past several years, restrictions on patient activities after
meniscal repair have eased considerably. Based on experimental and
clinical studies, postoperative rehabilitation has progressed to early,
full-weight-bearing, unlimited motion without bracing, and return to
sports as soon as normal strength, motion, and flexibility are achieved
When meniscal repair is performed in conjunction with
ACL surgery, we follow the rehabilitation program for the cruciate
ligament (see Chapter 89). When isolated
meniscal repair has been performed in an acute tear where satisfactory
apposition and fixation have been achieved, we use a modified
accelerated protocol with a short, initial period of bracing (Table 85.2). Encourage early use of a stationary bicycle and isokinetic exercises, but avoid


squatting and pivoting for 2–3 months. In our experience, return to
full activity usually takes 3–4 months. If a patient develops pain or
effusion, slow down or regress activity until symptoms subside. If
symptoms do not resolve, investigate further (using arthrogram or
arthroscopy) to evaluate the knee.

Table 85.2. Postoperative Management for Meniscal Repair
Delayed surgery in the knee with a history of locking, a
block to extension, or associated ACL and meniscus tear can be
associated with articular degeneration (50).
Complications of open or arthroscopic meniscus surgery include failure
to heal or retear after meniscal repair, neurovascular injury,
hemarthrosis, deep vein thrombosis, reflex sympathetic dystrophy,
infection, iatrogenic injury to intraarticular structures, especially
the femoral condyles, osteonecrosis, and DJD (7,31,40).
The most important factor influencing meniscal healing
is knee stability. In knees with concomitant ACL reconstruction,
meniscal healing rates are approximately 90% to 100%. This contrasts
sharply with success rates as low as 30% in the ACL-deficient knee (53).
In isolated meniscal injury, healing rates are less than those observed
in the knee undergoing simultaneous ACL reconstruction, but, as noted
previously, they average 85%.
Saphenous neuropathy is the most frequent complication associated with meniscal repair (7). Injuries to the saphenous nerve or its infrapatellar branches are transitory in nearly 90%, resolving over a few months (7).
While permanent injury is rare, a neuroma can occur, producing pain and
numbness. With lateral meniscal repair, the peroneal nerve is at risk
with any inside-out technique. Complications associated with meniscal
arrows include pain secondary to prominent arrow tips, as well as
breakage of arrows during insertion. A recent randomized study with 68
patients compared arrows to inside-out suture repair. Two infections
occurred in the suture group and none in the arrow group; five patients
had saphenous nerve pain in the suture group, compared to two in the
arrow group (2).
Each reference is categorized according to the following
scheme: *, classic article; #, review article; !, basic research
article; and +, clinical results/outcome study.
! 1. Ahmed AM, Burke DL. In Vitro Measurement of Static Pressure Distribution in Synovial Joints—Part 1: Tibial Surface of the Knee. J Biomech Eng 1983;105:216.
+ 2. Albrecht-Olsen
P, Kristensen G, Burgaard P, et al. The Arrow vs. Horizontal Suture in
Arthroscopic Meniscus Repair. A Prospective Randomized Study with
Arthroscopic Evaluation. Knee Surg Sports Traumatol Arthrosc 1999;7:268.
! 3. Albrecht-Olsen
P, Lind T, Kristensen G, Falkenberg B. Failure Strength of a New
Meniscus Arrow Repair Technique: Biomechanical Comparison with
Horizontal Suture. Arthroscopy 1997;13:183.
* 4. Annandale T. An Operation for Displaced Semilunar Cartilage. Br Med J 1885;1:779.
! 5. Arnoczky SP, Warren RF. Microvasculature of the Human Meniscus. Am J Sports Med 1982;10:90.
+ 6. Arnoczky SP, Warren RF, Spivak JM. Meniscal Repair Using an Exogenous Fibrin Clot. J Bone Joint Surg Am 1988;70:1209.
+ 7. Austin KS, Sherman OH. Complications of Arthroscopic Meniscal Repair. Am J Sports Med 1993;21:864.
! 8. Baratz
ME, Fu FH, Mengato R. Meniscal Tears: The Effects of Meniscectomy and
of Repair on Intraarticular Contact Areas and Stress in the Human Knee:
A Preliminary Report. Am J Sports Med 1986;14:270.
+ 9. Barber AF, Click SD. Meniscus Repair Rehabilitation with Concurrent Anterior Cruciate Reconstruction. Arthroscopy 1997;13:433.
+ 10. Barber FA, Gurwitz GS. The Effect of Synovial Fluid on Suture Strength. Am J Knee Surg 1988;1:189.
! 11. Bhargava MM, Attia ET, Murrell GAC, et al. The Effect of Cytokines on the Proliferation and Migration of Bovine Meniscal Cells. Am J Sports Med 1999;27:636.
! 12. Boenisch
UW, Faber KJ, Ciarelli M, et al. Pull-out Strength and Stiffness of
Meniscal Repair Using Absorbable Arrows or Ti-Cron Vertical and
Horizontal Loop Sutures. Am J Sports Med 1999;27:626.
! 13. Bullough PG, Munuera L, Murphy J, et al. The Strength of the Menisci of the Knee as It Relates to Their Fine Structure. J Bone Joint Surg Br 1970;52:564.
! 14. Cook JL, Tomlinson JL, Kreeger JM, et al. Induction of Meniscal Regeneration in Dogs Using a Novel Biomaterial. Am J Sports Med 1999;27:658.
+ 15. Cooper DE, Arnoczky SP, Warren RF. Arthroscopic Meniscal repair. Clin Sports Med 1990;9:589.
+ 16. DeHaven KE. Meniscus Repair in the Athlete. Clin Orthop 1985;198:31.
+ 17. DeHaven KE, Black KP, Griffiths HJ. Open Meniscus Repair: Technique and Two to Nine Year Results. Am J Sports Med 1989;17:788.
+ 18. DeHaven KE, Lohrer WA, Lovelock JE. Long-term Results of open Meniscal Repair. Am J Sports Med 1995;23:524.
+ 19. Dossing K, Poulsen MB, Kristensen G. Meniscus Repair with Bionx Meniscus Arrow. In press.
+ 20. Eggli S, Wegmuller H, Kosina J, et al. Long-term Results of Arthroscopic Meniscal Repair. Am J Sports Med 1995;23:715.
! 21. Eyre DR, Wu JJ. Collagen of Fibrocartilage: A Distinctive Molecular Phenotype in Bovine Meniscus. FEBS Lett 1983;158:265.
* 22. Fairbank TJ. Knee Joint Changes after Meniscectomy. J Bone Joint Surg Br 1948;30:664.


+ 23. Fischer SP, Fox JM, Del Pizzo W, et al. Accuracy of Diagnoses from Magnetic Resonance Imaging of the Knee. J Bone Joint Surg Am 1991;73:2.
+ 24. Fitzgibbons
RD, Shelbourne KD. “Aggressive” Non-treatment of Lateral Meniscal Tears
Seen During Anterior Cruciate Ligament Reconstruction. Am J Sports Med 1995;23:156.
+ 25. Fowler PJ, Lubliner JA. The Predictive Value of Five Clinical Signs in the Evaluation of Meniscal Pathology. Arthroscopy 1989;5:184.
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